Reese and Dean return for another exciting visit to the magical Erutuf National Park. The siblings arrive in the valley part of the park and meet a talking bison named Lamar. Lamar needs their help. Can they work together while facing new challenges to protect this national park? Will they get some unexpected assistance on this mission? Can they guard the secret map from a new set of pirates? “This book is great for elementary school kids. It has magic and mystery with cute jokes and I love the animals.” — Candi Terry, elementary school librarian